A bearing of a line is also known as ............

Direct method of contouring is ............

The space of cross-sections in a hilly country is usually ............

The process of turning the telescope about the vertical axis in horizontal plane is known as ............

The altitude of a traverse leg is obtained by multiplying its length by ............

Location of contour gradient for a highway is best set out from ............

In tacheometrical observations, vertical staff holding is generally preferred to normal staffing, due to ............

Ina precision traverse, included angles are measured by setting the vernier ............

When the first object is to be focused, the scale is set to 0°00'00" and then ............